Add JSON Merge Patch support

v3.5.0

Update links in README.md

v3.4.2: Merge pull request #12 from swaggest/skip_if_isset

option to skip overwriting value if it is set

v3.4.1: Merge pull request #11 from swaggest/issue-9

resolves #9

JsonPointer::buildPath

v3.4.0

JsonPointer::buildPath

v3.3.1

do not modify data on failing `add`

Fault-tolerant patch apply

v3.3.0

fault-tolerant patch apply

JSON replace by value filtered by path

v3.2.1

JsonValueReplace

JSON replace by value

v3.2.0

JsonValueReplace

v3.1.1

wrong escaping

v3.1.0

readme